What is the Mechanical Switch Calculator?
The Mechanical Switch Calculator allows keyboard enthusiasts and typists to compare the physical characteristics of different Cherry MX, Gateron, and Kailh switches. It calculates total travel distance and actuation force, helping you find the perfect switch for gaming or typing without fatiguing your fingers.
How to Calculate Key Switch Metrics (Formulas)
Mechanical switches are defined by exactly where the electrical contact is made during the keystroke, and how much weight it takes to press.
- Actuation Distance: The exact millimeter depth where the computer registers the keypress.
- Bottom-Out Distance: The maximum depth the key can be pushed until it hits plastic.
- Post-Travel Formula: Bottom-Out Distance - Actuation Distance.
Frequently Asked Questions
What is the difference between Linear, Tactile, and Clicky switches?
Linear switches (Red/Black) push smoothly straight down with zero resistance, preferred for rapid gaming. Tactile switches (Brown/Clear) have a physical "bump" you can feel halfway down to confirm the keypress, ideal for typing. Clicky switches (Blue/Green) have the bump and an incredibly loud, audible click mechanism.
Why do speed switches cause so many typos?
Speed switches (like Cherry MX Silver) have an extremely shallow actuation point (often 1.2mm compared to a standard 2.0mm). Because they activate so early, even resting your fingers heavily on the keys or slightly grazing an adjacent key while typing will register as an accidental keystroke.
What does actuation force (cN or grams) mean?
Actuation force is the amount of physical weight required to press the key down. A lightweight switch (45g) is easy to spam but leads to accidental presses. A heavy switch (80g) prevents typos but will quickly fatigue your hands if typing essays all day.